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Free boating theory questions and short answers

Search-friendly answers for Day Skipper theory, Marine Radio SRC, VHF procedure, buoyage, lights, tides, CEVNI and practical revision. Each page has one question, a short answer, a mini quiz and a link to revise the full topic.

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Radar

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7 questions
How should a crossing contact be assessed?What does a radar display show?What is the safest response to an uncertain harbour radar picture?Which sequence best supports a radar-based decision in a developing traffic situation?What is essential before using a radar echo for a fix?A blank wedge remains on the same relative bearing when the boat changes heading. Which cause should be investigated first?Even with radar operating normally, which duties and evidence remain part of the decision?